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3 years ago

6

The math score for ten of Mrs. Moore's students are shown below. How many students made a score of more than 69 but less than 90

?

1 answer:

TEA [102]3 years ago

3 0

Answer:

8

Step-by-step explanation:

first, 70-79 have 3 students

then 80-89 have 5 students

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Look at the image below

bulgar [2K]

Answer: what’s the question ?

3 0

3 years ago

how many pounds of candy worth $12 per pound should be mixed with candy costing $19 per pound to produce a 70 pound mixture that

sweet-ann [11.9K]

Answer:

40 pounds

Step-by-step explanation:

Given: Cost of a candy $(c_1)$ = $\$ 12$ per pound

Cost of candy $(c_2) = \$ 19\ per\ pound$

Total amount of mixture of be produced = $70\ pound$

Selling price of mixture = $\$ 15 \ per\ pound$

Let´s x be the amount of $c_1$ to be mixed in the mixture.

∴ Cost of $c_1$ in the mixture = 12x

Next, Cost of $c_2$ in the mixture = $(70 - x)\times 19$

And we know the cost of final mixture = $70 \times 15 = 1050$

Now, putting all the value in the equation

⇒ $12x + 19 \times (70 - x) = 1050$

⇒ $1330 - 7x = 1050$

⇒ $-7x = -280$

∴ $x = 40\ pound$

∴ 40 pounds of candy worth $12 per pound to be mixed in the mixture.

6 0

3 years ago

Factorise m^4 + m^2 +1

Semenov [28]

Answer:

hhahahahahahahahahaha

8 0

3 years ago

Three of the angles of a quadrilateral are 53°, 127° and 72°. What is the size of the 4th angle?

EleoNora [17]

The size of the fourth angel = 360 - ( 53 + 127 + 72 ) = 108

4 0

4 years ago

Customers per day: 98, 87, 93, 82, 101, 99, 97, 97, 91<br> Find the mean to the nearest tenth:

notsponge [240]

<h2>Mean = 93.3 (to nearest tenth).</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102There are 11 numbers.</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102There are 11 numbers.The Median is the center value (= the 6th</h2><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102There are 11 numbers.The Median is the center value (= the 6thnumber) = 97.</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102There are 11 numbers.The Median is the center value (= the 6thnumber) = 97.The mode = highest occurring value = 97.</h2><h2 /><h2>Mean = 93.3 (to nearest tenth).Median = 97.Mode = 97.Step-by-step explanation:Arrange the data in ascending order:79 82 87 91 93 97 97 98 99 101 102There are 11 numbers.The Median is the center value (= the 6thnumber) = 97.The mode = highest occurring value = 97.The mean = sum / 11 = 93.3.</h2>

7 0

3 years ago

Read 2 more answers